WESH said Zimmerman was arrested in Apopka, Fla., at his girlfriend’s house. The TV station talked to neighbors, who said Zimmerman’s truck had been in the area for about a month and “they thought the man might have been an undercover cop because he walked around like an officer.”

A reporter from WFTV tweeted the information that Zimmerman may have had a gun:

A good source has told me the #Zimmerman disturbance involves his new girlfriend and a gun.

Zimmerman has had other trouble with police since he was found not guilty of killing teen Trayvon Martin earlier this year, spiking nationwide outrage. He was taken in by police after his wife, Shellie Zimmerman, and her father said he threatened them, the Sentinel said, although the case was later closed because of lack of evidence. The couple was in the midst of a divorce.